218777799

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 315705600

約数和(自身を除く): 96927801

約数列:

[1, 3, 19, 53, 57, 139, 159, 417, 521, 1007, 1563, 2641, 3021, 7367, 7923, 9899, 22101, 27613, 29697, 72419, 82839, 139973, 217257, 419919, 524647, 1375961, 1573941, 3838207, 4127883, 11514621, 72925933, 218777799]

約数ペア:

[(1, 218777799), (3, 72925933), (19, 11514621), (53, 4127883), (57, 3838207), (139, 1573941), (159, 1375961), (417, 524647), (521, 419919), (1007, 217257), (1563, 139973), (2641, 82839), (3021, 72419), (7367, 29697), (7923, 27613), (9899, 22101)]